13818026 has 4 divisors (see below), whose sum is σ = 20727042. Its totient is φ = 6909012.

The previous prime is 13818023. The next prime is 13818043. The reversal of 13818026 is 62081831.

13818026 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12243001 + 1575025 = 3499^2 + 1255^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13818026.

It is not an unprimeable number, because it can be changed into a prime (13818023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3454505 + ... + 3454508.

Almost surely, 2^13818026 is an apocalyptic number.

13818026 is a deficient number, since it is larger than the sum of its proper divisors (6909016).

13818026 is an equidigital number, since it uses as much as digits as its factorization.

13818026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6909015.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 13818026 is about 3717.2605504592. The cubic root of 13818026 is about 239.9654232595.

Adding to 13818026 its reverse (62081831), we get a palindrome (75899857).

The spelling of 13818026 in words is "thirteen million, eight hundred eighteen thousand, twenty-six".